管道消聲器和風(fēng)道末端單元檢測

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GB/T 17697-2014聲學(xué) 風(fēng)機(jī)和其它通風(fēng)設(shè)備輻射入管道的聲功率測定 管道法

概述本標(biāo)準(zhǔn)規(guī)定了一種測定連接管道的風(fēng)機(jī)和其他通風(fēng)設(shè)備進(jìn)、出口端輻射入具有消聲末端的管道內(nèi)聲功率的方法。本方法適用于空氣溫度為-50 ℃~+70 ℃和輻射穩(wěn)態(tài)寬、窄帶和離散頻率噪聲的風(fēng)機(jī)。測試管道直徑范圍為0.15 m~2 m。附錄H和附錄I分別描述了直徑d<0.15 m和d>2 m的測試管道內(nèi)測定風(fēng)機(jī)聲功率的方法。本標(biāo)準(zhǔn)的測定方法對傳聲器頭部位置氣流大平均流速的限值取決于傳聲器防護(hù)罩的類型:--泡沫球風(fēng)罩:15 m/s;--鼻錐:20 m/s;--采樣管:40 m/s。若超過這些值,靠上述的傳聲器防護(hù)裝置不足以抑制湍流壓力脈動(見3.9)。聲功率測試時,要按照GB/T 1236規(guī)定的方法測量氣流參數(shù)。因此,測試管道通常在風(fēng)機(jī)出口端裝有“星形”整流柵以使渦流小(見5.2.9和7.3)。按照GB/T 1236 C型安裝的大風(fēng)機(jī),可以省去整流柵,但只限于旋渦角不超過15°的條件(附錄J舉例說明了旋渦角的測定方法)。適用的聲源類型本標(biāo)準(zhǔn)描述的測試方法適用于風(fēng)機(jī)至少有一端與管道相連的聲源,以及其他風(fēng)機(jī)/消聲器的組合或被稱作“黑匣子”的風(fēng)機(jī)組合體。本標(biāo)準(zhǔn)涉及的風(fēng)機(jī)和其他設(shè)備包括:--連接管道的離心風(fēng)機(jī);--連接管道的軸流風(fēng)機(jī);--連接管道的混流風(fēng)機(jī);--連接管道的空氣處理機(jī);--連接管道的吸塵裝置;--連接管道的空調(diào)裝置;--連接管道的熱風(fēng)機(jī)。本標(biāo)準(zhǔn)也適用于輔助風(fēng)機(jī)傳送的氣流平穩(wěn)、且測試管道內(nèi)聲壓與湍流壓力脈動的信噪比不低于6 dB (見7.2.1)的其他氣動聲源,例如靜壓箱、風(fēng)閥和節(jié)流裝置。GB/T 25516規(guī)定

GB/T 21229-2007聲學(xué) 風(fēng)道末端裝置、末端單元、風(fēng)道閘門和閥噪聲聲功率級的混響室測定

本標(biāo)準(zhǔn)旨在建立按GB/T 14367規(guī)定進(jìn)行聲學(xué)測試通用準(zhǔn)則，適用于ISO 3258所規(guī)定的空氣配給與空氣擴(kuò)散系統(tǒng)所采用的風(fēng)道末端裝置、末端單元、風(fēng)道閘門和閥噪聲的聲功率級測定

GB/T 25516-2010聲學(xué) 管道消聲器和風(fēng)道末端單元的實(shí)驗(yàn)室測量方法 插入損失、氣流噪聲和全壓損失

本標(biāo)準(zhǔn)規(guī)定了下列測試方法:有氣流和無氣流狀態(tài)下，管道消聲器的頻帶插入損失;消聲器再生氣流噪聲的頻帶聲功率級;有氣流通過時，管道消聲器的全壓損失;風(fēng)道末端單元的頻帶傳聲損失。本標(biāo)準(zhǔn)規(guī)定的是環(huán)境溫度下實(shí)驗(yàn)室的測量方法。而消聲器的現(xiàn)場測量方法在GB/T 19512中作了詳細(xì)描述。需要說明的是，根據(jù)本標(biāo)準(zhǔn)得到的實(shí)驗(yàn)室測試結(jié)果沒有必要與現(xiàn)場(安裝)得到的測試結(jié)果相一致。不同的聲場和流場都會導(dǎo)致不同的結(jié)果。例如，實(shí)驗(yàn)室測出的壓力損失會比現(xiàn)場的低。不過，不同實(shí)驗(yàn)室的測試結(jié)果可以進(jìn)行對照。本標(biāo)準(zhǔn)適用于包括通風(fēng)和空調(diào)系統(tǒng)、燃?xì)獾倪M(jìn)氣和排氣系統(tǒng)以及其他類似系統(tǒng)所有類型的消聲器。另一些無源通風(fēng)裝置，如彎頭、風(fēng)道末端和T型連接管等也可根據(jù)本標(biāo)準(zhǔn)進(jìn)行測試。本標(biāo)準(zhǔn)不適用于機(jī)動車的抗性消聲器。

GB 50073-2013潔凈廠房設(shè)計規(guī)范

1.0.1為了使?jié)崈魪S房設(shè)計符合節(jié)約能源、勞動衛(wèi)生和環(huán)境保護(hù)的要求,做到技術(shù)先進(jìn)、經(jīng)濟(jì)適用、安全可靠,確保潔凈廠房設(shè)計質(zhì)量,制定本規(guī)范。1.0.2本規(guī)范適用于新建、擴(kuò)建和改建潔凈廠房的設(shè)計。1.0.3潔凈廠房設(shè)計應(yīng)是施工安裝、維護(hù)管理、檢修測試和安全運(yùn)行的基礎(chǔ)。1.0.4潔凈廠房設(shè)計除應(yīng)符合本規(guī)范外,尚應(yīng)符合現(xiàn)行有關(guān)標(biāo)準(zhǔn)的規(guī)定。

GB/T 51165-2016綠色飯店建筑評價標(biāo)準(zhǔn)

本標(biāo)準(zhǔn)適用于綠色飯店建筑的評價。

JJF 1648-2017管道消聲器測試系統(tǒng)校準(zhǔn)規(guī)范

本規(guī)范規(guī)定了管道消聲器測試系統(tǒng)的校準(zhǔn)條件及其主要計量特性的校準(zhǔn)方法。本規(guī)范適用于包括通風(fēng)和空調(diào)系統(tǒng)、燃?xì)獾倪M(jìn)氣和排氣系統(tǒng)以及其他類似系統(tǒng)管道消聲器性能測量的測試系統(tǒng)(稱為管道消聲器測試系統(tǒng))的校準(zhǔn)。

JGJ/T 141-2017通風(fēng)管道技術(shù)規(guī)程

本規(guī)程適用于工業(yè)與民用建筑金屬、非金屬及復(fù)合材料通風(fēng)管道(簡稱風(fēng)管)的制作、安裝與檢驗(yàn)。

HJ 2034-2013環(huán)境噪聲與振動控制工程技術(shù)導(dǎo)則

本標(biāo)準(zhǔn)規(guī)定了環(huán)境噪聲與振動控制工程對設(shè)計、施工、驗(yàn)收和運(yùn)行維護(hù)的通用技術(shù)要求。本標(biāo)準(zhǔn)適用于環(huán)境噪聲與振動控制工程。對于有相應(yīng)的工藝技術(shù)規(guī)范或污染源技術(shù)規(guī)范的工程,應(yīng)同時執(zhí)行本標(biāo)準(zhǔn)和相應(yīng)的工藝技術(shù)規(guī)范或污染源技術(shù)規(guī)范。本標(biāo)準(zhǔn)可作為噪聲與振動控制工程環(huán)境影響評價、設(shè)計、施工、竣工驗(yàn)收及運(yùn)行與管理的技術(shù)依據(jù)。

DIN EN ISO 5136-2009聲學(xué),風(fēng)機(jī)或其他空氣移動裝置輻射入管道中的聲功率的測定.管道法(ISO 5136:2003),德文版本 EN ISO 5136:2009

1.1 GeneralThis International Standard specifies a method for testing ducted fans and other air-moving devices todetermine the sound power radiated into an anechoically terminated duct on the inlet and/or outlet side of theequipment.NOTE 1 For the sake of brevity, wherever the term \"fan\" occurs in the text, it means \"fan or other air-moving device\".The method is applicable to fans which emit steady, broad-band, narrow-band and discrete-frequency soundand to air temperatures between - 50 ℃ and + 70 ℃. The test duct diameter range is from 0,15 m to 2 m.Test methods for small (d < 0,15 m) and large (d > 2 m) test ducts are described in the informative Annexes Hand I, respectively.The maximum mean flow velocity at the microphone head for which the method is suitable depends on thetype of microphone shield used, and is as follows:-- foam ball 15 m/s;-- nose cone 20 m/s;-- sampling tube 40 m/s.Above these values the suppression of turbulent pressure fluctuations by the microphone shield (see 3.9) maybe insufficient.It is expected that sound power tests will be conducted in conjunction with airflow performance tests inaccordance with ISO 5801. The ducting arrangement will therefore normally incorporate a \"star\" type flowstraightener on the outlet side of the fan which will minimize swirl (see 7.3). Where it is permissible to deletethe straightener as, for example, with large fans to installation category C according to ISO 5801:1997, themethod is limited to a swirl angle of 15~. (An example of a method for determining the angle of swirl is given inAnnex J.)NOTE 2 The installation categories defined in ISO 5801 imply that the fan is either ducted on the outlet side only(category B), on the inlet side only (category C) or on both sides (category D).1.2 Types of sound sourceThe method described in this International Standard is applicable to a sound source in which a fan isconnected to ducts on at least one side. It is also applicable to other fan/attenuator combinations or equipmentincorporating fans which can be considered as \"black boxes\".Examples of fans and other equipment covered by this International Standard are-- ducted centrifugal fans,-- ducted axial flow fans, ducted mixed-flow fans, ducted air-handling units, ducted dust collection units, ducted air-conditioning units, and ducted furnaces.This International Standard is also applicable to other aerodynamic sources such as boxes, dampers andthrottle devices provided that a quiet air flow delivered by an auxiliary fan is available and the signal-to-noiseratio of sound pressures to turbulent pressure fluctuations in the test duct is at least 6 dB (see 7.2.1 ).An alternative method to determine the sound power level of the flow-generated noise of such aerodynamicsound sources, which does not require the measurement of sound pressure in a flow environment, isdescribed in ISO 7235. The method was originally devised for the determination of the flow noise level ofducted silencers. The sound power is determined in a reverberation room connected to the test duct via atransition element.In the case of ducted fans with closely coupled attenuators, the signal-to-noise ratio of sound pressures to turbulent pressures may be insufficient when using the in-duct method. Therefore the method described inISO 7235 is recommended for such fan/attenuator combinations.This International Standard is net applicable to non-ducted fans or equipment.

DIN EN ISO 7235-2010聲學(xué).管道消音器和空氣界面裝置的實(shí)驗(yàn)室測量規(guī)程.插入損失、流動噪聲和總壓損失(ISO 7235-2003).德文版本EN ISO 7235-2009

This standard specifies a measurement method for the determination of insertion loss, flow noise and pressure loss of ducted silencers. It applies to mainly dissipative silencers, but not to the reactive types used in automobiles.

BS EN 13141-2-2010建筑物通風(fēng).住宅通風(fēng)用部件/產(chǎn)品的性能測試.排氣和供氣終端設(shè)備

This European Standard specifies laboratory methods for testing exhaust and supply air terminal devicesoperating under pressure differences.It applies to devices used in mechanical and natural residential ventilation systems, of the following types:- device with a manually adjustable opening; or- device with a fixed opening; or- pressure difference controlled device.It describes tests intended to characterize:- flow rate/pressure;- air diffusion characteristics (for supply air terminal devices);- noise production for components of systems;- insertion loss of component of systems;- sound insulation.